Preparation method of lamination battery cell

A cell and lamination technology, which is applied in the field of electrochemical energy storage devices, can solve the problems of long auxiliary time, production efficiency to be improved, and high performance requirements such as the durability of the isolation film slitting device.

Active Publication Date: 2014-09-17
NINGDE AMPEREX TECH
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Problems solved by technology

[0007] In the traditional preparation process of Z-shaped separator-type laminated battery cells, since the separator needs to be cut off every time a battery cell is prepared, the next battery cell can be prepared, so the operatio

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  • Preparation method of lamination battery cell
  • Preparation method of lamination battery cell
  • Preparation method of lamination battery cell

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Embodiment Construction

[0034] The following detailed description describes exemplary embodiments and is not intended to be limited to the expressly disclosed combinations. Accordingly, unless otherwise stated, various features disclosed herein may be combined together to form additional combinations not shown for the sake of brevity.

[0035] refer to figure 1 , figure 2 , Figure 6 , Figure 9 According to the preparation method of the laminated electric core of the present invention, it includes the steps of: setting the lamination stack: the lamination stack 1 includes n lamination groups 11, each lamination group 11 includes m pole piece elements and each lamination group 11 The number of pole piece elements included is the same (refer to figure 1 , figure 2 , Figure 6 , Figure 9 ) or different, wherein n≥2, m≥2, gaskets 2 are arranged between adjacent lamination groups 11, the pole piece elements of all lamination groups 11 of lamination stack 1 and adjacent lamination groups 11 The...

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Abstract

The invention provides a preparation method of a lamination battery cell. The preparation method of the lamination battery cell comprises the following steps: a lamination pile comprising n lamination groups is arranged, wherein each lamination group comprises m pole piece elements, n is more than or equal to 2, and m is more than or equal to 2, and gaskets are arranged between the adjacent lamination groups; the pole piece elements of all the lamination groups of the lamination pile and the gaskets between the adjacent lamination groups are sequentially positioned in a Z-shaped isolation membrane along the piling direction; each gasket separates the upper and lower parts of the adjacent isolation membranes; forming a lamination battery cell is formed, namely, the isolation membranes are disconnected at one end of each gasket, positioned in the isolation membranes, so that each gasket and each lamination group can be separated, and further, the lamination battery cell formed by the pole piece elements in each lamination group and corresponding isolation membrane can be obtained, wherein each lamination battery cell comprises an anode pole piece and a cathode pole piece, or a monomer battery cell, or a monomer battery cell, or the combination of the monomer battery cell and the anode pole piece and/or cathode pole piece, so that the efficiency of the lamination battery cell is improved greatly.

Description

technical field [0001] The invention relates to the technical field of electrochemical energy storage devices, in particular to a method for preparing a laminated electric core. Background technique [0002] As the most representative energy storage device in the field of new energy, lithium-ion batteries have been widely used in mobile electronic devices, electric vehicles, energy storage and other fields. According to different preparation processes, lithium-ion batteries can be divided into wound-type lithium-ion batteries and laminated lithium-ion batteries. [0003] At present, the core preparation process of laminated lithium-ion batteries is basically divided into the following three types: [0004] (1) Simple stacking type: the positive pole piece, the negative pole piece and the separator are cut into a predetermined size, and then in the order of the negative pole piece--the separator--the positive pole piece--the separator--the negative pole piece The slit posit...

Claims

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Application Information

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IPC IPC(8): H01M10/0583
CPCH01M10/0459H01M10/0585H01M10/052H01M10/0583Y02E60/10Y02P70/50H01M10/0525H01M10/058
Inventor 陈贤锐张怀勇梁艳明贾宝安林景斌刘秋艳
Owner NINGDE AMPEREX TECH
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